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We considered hundreds of charities, systematically identified the most promising ones by our criteria, and did in-depth investigations (and published reviews) on the promising ones. For more detail, see Our Process.
We list all charities considered at our process page, and this may include a review on the charity you're interested in. However, GiveWell focuses on finding the best charities possible, not on reviewing as many charities as possible. Understanding even a single charity in-depth generally takes hundreds of person-hours. So the content on any given non-recommended charity may be limited, aside from outlining why we didn't find the charity promising enough to investigate in depth.
We have written informally about our views on some well-known charities:
We considered multiple factors, with a particular emphasis on cost-effectiveness (which one can accomplish more good per dollar spent). Details at our blog post on this topic.
Top Charities are the organizations that we feel will accomplish the most good, per dollar contributed.
"Standout" organizations may appeal to donors interested in other causes. We award the "standout" distinction to organizations that meet the following criteria:
There is an element of arbitrariness to which charities get investigated in enough depth to contend for a "Standout" rating. Our priorities change over time, and some in-depth investigations happen because it is logistically convenient to visit an organization's field operations (as part of a longer visit). (For a better understanding of this dynamic, please see our process page.
We don't think so. The process for becoming a U.S.-registered charity can be long and relatively involved, and some of our recommended charities have not had enough interest from U.S. donors (prior to our recommendation) to have gone through this process. However, we have examined the financial records and established the charitable purposes of all recommended organizations, and for all such organizations we provide some way of getting a tax deduction for supporting them (in some cases by donating to GiveWell, which can regrant donations to these organizations).
We believe that there is a very large need for more bednets to cover at-risk populations. Details at our writeup on net distribution.
While this is one of our remaining concerns, we believe the best available evidence suggests a "yes" answer. Multiple studies associate nets with cost-effective reductions in malaria burden and child deaths; these studies generally saw usage rates in the 60-80% range; and the best available evidence suggests that usage rates of 60-80% are common. Details at our writeup on net distribution.
Treating children for parasitic infections (deworming) is very inexpensive and appears to have some benefit, though the exact nature and extent of the benefit is relatively unclear. We believe that deworming can be expected to slightly reduce anemia and perhaps have other subtle general health benefits; may reduce the occurrence of rare but severe symptoms, such as serious organ damage and death; and may have long-lasting developmental benefits for children, leading to higher earnings later in life. More
Our guess is that deworming children is likely to be less cost-effective (in terms of quality-of-life benefits per dollar spent) than distribution of long-lasting insecticide-treated nets (LLINs), but may be more cost-effective; the question comes down to personal values and estimates of highly uncertain figures. Deworming adults appears significantly less cost-effective.
Each review of a recommended charity discusses its room for more funding, i.e., how much more funding it can productively absorb and how this funding would change its activities. We closely track the revenue received by recommended charities, and we cease to recommend donating to a charity once we feel it no longer has short-term room for more funding.
We have focused on international aid because this is where we feel an individual donor can accomplish the most good (in terms of significant life change) per dollar given. More
We have investigated U.S. charity in the past and may do so again in the future. See our recommendations for donors interested in focusing on the U.S.
Many health-focused programs have extraordinarily strong track records and strong cost-effectiveness (in terms of good accomplished per dollar spent). Non-health activities tend to have much weaker evidence bases, and are often substantially more expensive per person served while not clearly providing more benefit. A 2011 blog post summarizes our view that global health and nutrition is the most promising cause for individual donors.
We discuss these issues at our writeup on quality of life in the developing world. On one hand, people in Sub-Saharan Africa are much worse off, and much more likely to die prematurely, than people in wealthier parts of the world. On the other hand, those who live past the age of 5 have strong chances of living to age 60 or so; saving a life even from a single cause of death means saving a person who is likely to live quite a while longer.
We will be publishing a piece on this topic relatively soon. In brief:
We publish critical questions that you can ask charities working in causes we haven't covered. These questions are based only on our very limited understanding of these causes, but they may be useful starting points.
For the charities that we direct the most funds to, we intend to publish quarterly reports on the charity's progress against its objectives and on its updated financial situation. As of this writing, the charity we have directed the most funding to is VillageReach, and we have been publishing regular updates on VillageReach. In general, in the future, we will be publishing regular updates on our top charities but not necessarily on other standout organizations.
Accomplishing as much good as possible per dollar spent is an important value to us, and we put substantial work into cost-effectiveness estimates. We publish cost-effectiveness figures that represent our best estimates, given all available information. We publish the full details behind these figures and provide spreadsheets that allow readers to see what the most debatable inputs are, and how the estimates change as these estimates vary.
However, all cost-effectiveness analysis of charities we're aware of - including ours - involves a great deal of simplification and guesswork. Therefore, we do cost-effectiveness analysis primarily to look for large, clear differences in good accomplished per dollar spent. We consider many other factors in rating and ranking charities.
More at our discussion of cost-effectiveness analysis.
We don't have any hard-and-fast rules for what constitutes persuasive evidence; we believe that interpreting evidence on charity effectiveness always takes a substantial amount of judgment calls. We discuss our general principles for evaluating evidence of impact at our page on impact analysis.
We do check this figure, but we do not place much emphasis on it - we believe it is the most over-used metric in charity. More at our 2009 comment on the joint press release by GiveWell, GuideStar, Charity Navigator, and other charity evaluators on the pitfalls of over-emphasizing the "administrative expense ratio."
We recommend against letting "donation matching" affect your choice of charity. More
We don't believe there is a clear answer, and do believe that it makes sense to give relatively regularly - for example, setting aside a set percentage of annual income. More
None of our current staff consider animal welfare charities to be a more promising area than the areas we do focus on. This is necessarily a judgment call that reflects our personal values.
We may cover animal welfare charities at some point in the future, but are unlikely to do so soon. In the meantime, we publish critical questions you can ask animal welfare organizations.
You may also wish to visit our transparency policy, which lists and links to most of the different kinds of information we provide.